Graham Buck's wife, Karen, said her life had been "turned upside down" by her husband's death.
Shortly before his murder, Mr Buck had returned for a long weekend in Poland, where he met his baby granddaughter for the first time.
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There will be a few showers in the north, but otherwise dry for many with warm sunny spells before heavier rain in the south west.
David Davis is hoping to push Brexit withdrawal talks towards discussions on a future trading relationship between the UK and EU.
A fine start to Sunday but rain moves in from the southwest later on.